Auger.



' No. 740,692. A 1 TATBNTED ocT.,19os.

. W. M. POTTER. y l

AUGER.v

APPLIGATION FILED FEB. 1o. 1902.

K0 MODEL.

WITNESSES:

f' INVENTOR Y 45%# Ww QQTTORNEK f mc cams Pneus no mmuum wAsumn'row, Die.

Patented October 6, IQO.A

NITED STATES-PATENT OFFICE# WILLIAM M. POTTER, or sYRAoUsE, New YORK, Assrsnon To n. O. s'rnnnns a oo., or sYRAoUsE, New YORK.

SPECIFICATION aiming pastor 4-letters Patent No. Monge, ated october e, 190s. Application tied February 1c, 1902. fsn'n No. 93,305. (No man.)

To all whom it may concern,.-

Be it known that I, AWILLIAM M. Porrnn,V of Syracuse, in the countyof Onondaga, in the State of New York, have invented new and useful Improvements in Angers, of which the following, taken in connection with the accompanying drawings, is a full, clear, and exact description.

My invention relates to a hollow auger adapted to cnt tenons of diderent iixed sizes on spokes and similar articlesgpand it'consists, essentially, of the stock, an adjustable cutter supported thereon, and a rotatable cutter-plate formed with gage-holes of different sizes. This cntter-plate has a dat face and is preferably formed with a beveled edge and with a shoulder between the edge and the face. The plate is jou rnaled on the outer end of a screw tting a cavity in an integral extension on one side of the stock, and a spiral spring is arranged around the screw to hold the cutter-plate against the head and to insure engagement of lugs on the platewith a notch on the shank to lock the plate in position for the particular hole in use to cut the desired size of tenons. j

My invention will be understoodY by reference to the accompanying drawings, in which the reference-numerals of the specification indicate the corresponding parts in allthe figures.

'Figure I is a top planv of a hollowr auger,`l

showing my invention. dinal section thereof. Fig. II, showing the end of the stock without the detachable parts. Fig. IV is an isometric view showing the preferred form of cutter.

In the Iigures, 1 indicates the shank,groov=ed at2, having the shoulder 3 and the threaded Fig.' Il is a longitutip 4: to engage with the base 5 of the stock body or frame, having the integral arms 6 and the head 7, forming Within them the oylindrical cavity 8. The body is formed with integral arm 10, slotted at l1 to receive the cutter, and with the integral extension 13, formed with socket Y14, in which is arranged the screw 16, having the head 17 and elongated shank 18, around which is arranged, between the base of the socket and the head, the spiral spring 19 for holding down against the Fig. III isa portion ofV head V`the rotating cutter-plate 21, fitted to the threaded tip 22 of the screw, yby means of which it is johrnaled in position, and having the dat upper face, the shoulder 24, and the beveled edge 25, into which edge extend uniformly the gage-holes 26 of various sizes, brought into operative position over the cavity as the cutter-plate is turned. This plate is also provided on its under side with the lugs 28, one to each gage-hole or operative position of the plate and adapted to engage with the notch Y29 on the head, locking the cutter-plate in the desired position.

' The slotted arm' 10 is grooved or provided on its outer il'lclinedfaceftO with integral lugs 41, between which is arranged the cutter42, secured in position by the clampingplate 43 and screws 44 and 45, one tted to the slot 46 in the clamping-plate to permit a slight swing thereof. The clamping-plate is also provided with the threaded socket 48, with which engages the threaded tip of the adjusting-screw 50, having the knurled head 51 and the circular shoulder 52 engaging with the adjusting-slot 53 in the cutter, by which it is adjusted in and out to make a larger or smaller out. The cutter is preferably formed with the beveled edge 55 and a' recess 56 on its under side, having lip 57 on one side or the other to throw ont the chip and permit easy sharpening.

`lo w auger so that a single auger is adapted to cut a large number of standard sizes of tenons, which are accurately cut and the anger easily and quickly adjusted to cut the size desired positively and without any possible variation. The holes may be of any desired size conveniently, as here shown, the smallest three-eighths inch and the largest one inch, between which, on one side, respectively, oneha'lf, nine-sixteenths; seveneighths inch, and on the other seven-sixteenths, five-eighths, three-fourths inch.

Having thus described my invention, what I claim, and desire to secure by Letters Patent is 1i In a hollow auger, the combination with the stock, of a cutter'snpported thereon, an integral extension on the stock formed with IOO a cavity, a screw fitted to said cavity, a spiral spring arranged about the screw between its head and the base of the cavity, a cut ter-plate formed with gage-holes of diiterent sizes secured to the outer end of the screw, and corresponding notches and projections on the plate and the stock.

2. The combination in ahollow auger of the stock, a cutter supported thereon, a cutterplate journaled on the stock adjacent to the cutter formed with gage-holes of different sizes, resilientnieans to holdthe plate against the stock and integral lugs on the cutterplate to engage with a notch on the body, locking the cutter-plate in the various operative positions.

3. In a hollow auger, the combination with the stock, of acircularcutter-platejournaled thereon, means to turn the cutter-plate and lock it in the desired position, said cutterplate being formed with a fiat face and beveled edge, and with gage-holes extending a short distance into the beveled edge.

4. In a hollow auger, the combination with the shank, of an integral base, ribs and head, and a cavity within the ribs, of an integral arm and integral extension on the head, the arm being formed with an inclined groove, a cutter adjustably arranged in said groove, a

clamping-plate and screws to secure the cut? ter in position, a screw arranged in a socket in the extension substantially parallel tothe cavity, a spiral spring arranged around the shank of the screw between its head and the base of the socket, an outwardly-extending threaded tip on the screw, a cutter-plate tted to said tip, having a flat outer face and beveled edge, and lugs on its lower surface adapted to engage with a notch iu the head, said cutter-plate being formed with gageholes of different sizes, extending uniformly into the beveled edge.

5. In a hollow auger, the combination ofthe shank,havinga grooved shoulderand a threaded tip, of theintegral auger-body formed with an elongated cavity fitted to the threaded tip ofthe shank,said body having an integral arm, and an opposite integral extension formed with a socket arranged parallel to the cavity, of a screw fitted to said socket and having an outwardly-extending threaded tip, a spiral spring arranged around the shank of the screw, between the screw-head and the base of the socket, a cutter-plate journaled onv the threaded tip' of the screw, said cutterplate being formed with a flat, outer face, a circularshoulder, a beveled edge, gage-holes of various sizes brought into operative posi- -tion opposite the cavity, as the cutter-plate is rotated, and with lugs adapted in turn to engage with a notch on the head as the cutter-plate is rotated, a cutter having a cutting edge beveled above and slotted and lipped below, and an adjusting-slot in its base, of a clamping-plate to secure the cutter in position on the arm, screws fitted to the clamping-plate, one of said screws engaging with the slot therein, of an adj usting-screw having a knurled tip, a circular shoulder, engaging with the adj usting-slotin the cutter-face, and a threaded tip engaging with the threaded socket on the cutter-plate to adjust the cutter in and out.

In testimony whereof I have hereunto signed my name.

Witnesses:

C. C. SGHOENECK, N. E. FRIEND. 

